Paper and bamboo drinking straws contain long-lasting and potentially toxic chemicals, also known as PFAS or 'forever chemicals', a new study found. It detected PFAS in 18 of the 20 paper straw brands it examined. "Straws made from plant-based materials...are often advertised as being more...eco-friendly...The presence of PFAS...means that's not necessarily true," researcher Dr Thimo Groffen said.